:root {
  --color-void: #05070A;
  --color-panel: #0B1016;
  --color-line: #1A2430;
  --color-cyan: #17E1D6;
  --color-cyan-soft: #5CF3EA;
  --color-amber: #FFB23F;
  --color-text: #E8EEF4;
  --color-muted: #8A98A6;
  --color-danger: #FF5470;
  --color-success: #4ADE80;
  --rail-w: 232px;
  --topbar-h: 76px;
  --content-max: 1180px;
  --gutter: clamp(20px, 4vw, 48px);
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--color-void);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
img,
svg {
  max-width: 100%;
}
:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 3px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--color-amber);
  color: var(--color-void);
  font-weight: 700;
  border: 1px solid var(--color-amber);
  transform: translateY(-160%);
  transition: transform .16s ease;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}
.site-header {
  color: var(--color-text);
}
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  height: var(--topbar-h);
  background: rgba(5, 7, 10, .94);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(14px);
}
.topbar__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 var(--gutter);
}
.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 1px solid var(--color-cyan);
  background: linear-gradient(135deg, rgba(23, 225, 214, .16), transparent 58%);
}
.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  background: var(--color-cyan);
}
.brand__mark::before {
  left: 8px;
  right: 8px;
  top: 16px;
  height: 1px;
}
.brand__mark::after {
  top: 8px;
  bottom: 8px;
  left: 16px;
  width: 1px;
  background: var(--color-amber);
}
.brand__text {
  min-width: 0;
  display: block;
}
.brand__text strong {
  display: block;
  font-size: 16px;
  font-weight: 900;
  letter-spacing: .02em;
  line-height: 1.2;
}
.brand__text span {
  display: block;
  max-width: 32ch;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.topbar__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.topbar__mail {
  color: var(--color-muted);
  font-size: 13px;
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}
.topbar__mail:hover {
  color: var(--color-cyan-soft);
  border-bottom-color: var(--color-cyan-soft);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--color-line);
  border-radius: 0;
  background: var(--color-panel);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
  cursor: pointer;
  transition: background .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}
.btn:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan-soft);
}
.btn--accent {
  background: var(--color-amber);
  border-color: var(--color-amber);
  color: var(--color-void);
}
.btn--accent:hover {
  background: #FFC46A;
  border-color: #FFC46A;
  color: var(--color-void);
}
.btn--ghost {
  background: transparent;
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}
.btn--ghost:hover {
  background: rgba(23, 225, 214, .08);
  color: var(--color-cyan-soft);
}
.btn--quiet {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-muted);
}
.btn--quiet:hover {
  border-color: var(--color-muted);
  color: var(--color-text);
}
.topbar__cta {
  min-height: 38px;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  border: 1px solid var(--color-line);
  background: var(--color-panel);
  color: var(--color-text);
  cursor: pointer;
}
.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform .16s ease, opacity .16s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.site-nav {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  bottom: 0;
  z-index: 70;
  width: var(--rail-w);
  overflow-y: auto;
  padding: 28px 20px;
  background: linear-gradient(180deg, var(--color-panel) 0%, var(--color-void) 100%);
  border-right: 1px solid var(--color-line);
}
.site-nav__rail {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  gap: 28px;
}
.site-nav__label,
.site-nav__anchor-title {
  margin: 0;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
}
.site-nav__list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border-left: 2px solid transparent;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.35;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.site-nav__link:hover {
  background: rgba(23, 225, 214, .06);
  border-left-color: var(--color-cyan);
  color: var(--color-text);
}
.site-nav__link[aria-current="page"] {
  background: rgba(23, 225, 214, .08);
  border-left-color: var(--color-amber);
  color: var(--color-cyan);
  font-weight: 900;
}
.site-nav__anchors {
  display: grid;
  gap: 8px;
  margin-top: auto;
}
.rail-anchor {
  display: block;
  padding: 10px 12px;
  border: 1px solid var(--color-line);
  background: rgba(11, 16, 22, .82);
  color: var(--color-text);
  font-size: 13px;
  line-height: 1.4;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.rail-anchor:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  background: rgba(23, 225, 214, .05);
}
.site-nav__foot {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.6;
}
#main-content {
  display: block;
  min-height: 100vh;
  margin-left: var(--rail-w);
  padding-top: var(--topbar-h);
}
.site-footer {
  margin-left: var(--rail-w);
  padding: 56px var(--gutter) 28px;
  background: var(--color-panel);
  border-top: 1px solid var(--color-line);
  color: var(--color-text);
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 40px;
  max-width: var(--content-max);
  margin: 0 auto;
}
.brand--footer {
  margin-bottom: 18px;
}
.footer__note {
  max-width: 46ch;
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.7;
}
.footer__safety {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 84, 112, .45);
  background: rgba(255, 84, 112, .06);
}
.footer__safety strong {
  display: block;
  margin-bottom: 6px;
  color: var(--color-danger);
  font-size: 13px;
}
.footer__safety p {
  margin: 0;
  color: var(--color-text);
  font-size: 13px;
  line-height: 1.7;
}
.footer__columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.footer__title {
  margin: 0 0 14px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 900;
  line-height: 1.3;
}
.footer__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer__list a,
.footer__contact-list a {
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
  transition: color .16s ease;
}
.footer__list a:hover,
.footer__contact-list a:hover {
  color: var(--color-cyan);
}
.footer__contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer__contact-item {
  display: flex;
  gap: 8px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}
.footer__contact-key {
  flex: 0 0 auto;
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
}
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  max-width: var(--content-max);
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 12px;
}
.footer__bottom p {
  margin: 0;
}
.footer__icp {
  color: var(--color-muted);
  font-family: var(--font-mono);
  transition: color .16s ease;
}
.footer__icp:hover {
  color: var(--color-cyan);
}
.footer__bottom-menu {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer__bottom-menu a {
  color: var(--color-muted);
  transition: color .16s ease;
}
.footer__bottom-menu a:hover {
  color: var(--color-cyan);
}
.content-shell {
  width: min(var(--content-max), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
}
.content-grid,
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.section-band {
  padding: clamp(48px, 8vw, 112px) 0;
  border-bottom: 1px solid var(--color-line);
}
.section-band--tight {
  padding-block: clamp(32px, 5vw, 64px);
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
}
.section-title {
  margin: 0 0 18px;
  color: var(--color-text);
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.05;
}
.lead {
  max-width: 46ch;
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.75;
}
.panel {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 2px;
}
.panel--highlight {
  border-color: rgba(23, 225, 214, .45);
  box-shadow: inset 0 0 0 1px rgba(23, 225, 214, .06);
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
.data-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 140px;
  padding: 22px;
  background: var(--color-panel);
}
.data-card__value {
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 700;
  line-height: 1;
}
.data-card__label {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 13px;
}
.mono {
  font-family: var(--font-mono);
}
.muted {
  color: var(--color-muted);
}
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--color-line);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
}
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--color-muted);
}
.status-dot--ok {
  background: var(--color-success);
}
.status-dot--warn {
  background: var(--color-amber);
}
.status-dot--danger {
  background: var(--color-danger);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  color: var(--color-muted);
  font-size: 13px;
  list-style: none;
}
.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb__item:not(:last-child)::after {
  content: "/";
  color: var(--color-line);
}
.breadcrumb a {
  color: var(--color-muted);
  transition: color .16s ease;
}
.breadcrumb a:hover {
  color: var(--color-cyan);
}
.fold {
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 2px;
}
.fold + .fold {
  margin-top: -1px;
}
.fold__summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  color: var(--color-text);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.fold__summary::-webkit-details-marker {
  display: none;
}
.fold__summary::after {
  content: "+";
  color: var(--color-cyan);
  font-family: var(--font-mono);
}
.fold[open] .fold__summary::after {
  content: "−";
}
.fold__body {
  padding: 0 20px 20px;
  color: var(--color-muted);
  line-height: 1.75;
}
.timeline {
  position: relative;
  display: grid;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
.timeline__item {
  padding: 22px;
  background: var(--color-panel);
}
.table-wrap {
  overflow-x: auto;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
}
.data-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}
.data-table th,
.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}
.data-table th {
  color: var(--color-cyan);
  font-size: 12px;
  letter-spacing: .08em;
}
.data-table td {
  color: var(--color-text);
}
.data-table .mono {
  color: var(--color-cyan);
}
.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 2px;
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .35;
  pointer-events: none;
}
.media-frame__img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide {
  aspect-ratio: 16 / 7;
}
.media-frame--tall {
  aspect-ratio: 4 / 5;
}
.media-frame__caption {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 12px 14px;
  border-top: 1px solid var(--color-line);
  background: rgba(5, 7, 10, .82);
  color: var(--color-muted);
  font-size: 12px;
}
.risk-note,
.safe-note {
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.7;
}
.risk-note {
  border-color: rgba(255, 84, 112, .5);
  background: rgba(255, 84, 112, .06);
}
.risk-note strong {
  color: var(--color-danger);
}
.safe-note {
  border-color: rgba(74, 222, 128, .45);
  background: rgba(74, 222, 128, .05);
}
.safe-note strong {
  color: var(--color-success);
}
.kbd {
  padding: 2px 6px;
  border: 1px solid var(--color-line);
  background: var(--color-void);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
}
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  height: 2px;
  background: transparent;
  pointer-events: none;
}
.scroll-progress__bar {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-amber));
  transform: scaleX(0);
  transform-origin: 0 50%;
}
@media (max-width: 1023px) {
  :root {
    --rail-w: 0px;
    --topbar-h: 64px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    top: var(--topbar-h);
    right: 0;
    bottom: auto;
    width: auto;
    max-height: calc(100vh - var(--topbar-h));
    padding: 18px var(--gutter) 24px;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  }
  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  .site-nav__rail {
    gap: 18px;
  }
  .site-nav__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .site-nav__anchors {
    margin-top: 0;
  }
  #main-content,
  .site-footer {
    margin-left: 0;
  }
  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer__contact {
    grid-column: 1 / -1;
  }
}
@media (max-width: 767px) {
  .topbar__mail {
    display: none;
  }
  .topbar__cta {
    display: none;
  }
  .brand__text span {
    max-width: 24ch;
  }
  .site-nav__list {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer__columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer__bottom {
    align-items: flex-start;
    flex-direction: column;
  }
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 480px) {
  .brand__text span {
    display: none;
  }
  .footer__columns {
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .scroll-progress {
    display: none;
  }
}